Hot water heater



` Oct. 27, l942. E. l. swAR'rHouT I HOT WATER HEATER Filed Maron 29, 194;

SHAB THOU T AITURN Y Patented Oer. 27, 1,942

UN ITED STATE itT-EN 'il *f 0F F ICE HOT YVATER HEATER,

Edward L. Swarthout, Portland, reg., assigner offene-half to Jay Bleakney, Portland, Oreg.

2 Claims.

My invention relates to improvements in hot water heater.

The primary purpose and object of my invention is to provide a domestic hot water heater that may be internally fired with hard fuel or with fluid fuel and one that will be eflicient in operation and yet will be so simple to construct that the cost of the same both in material and labor will be reduced to a minimum.

A still further object of my invention consists in so constructing the hot water heater that it may be installed by inexperienced workmen and one that may be operated by the housewife with freedom from operating mechanical annoyances.

A still further object of my invention consists in so constructing legs for supporting the hot Water heater that they will have a limited first cost and yet be practical in their use and application.

With these and incidental objects in View, the invention consists in certain novel features of construction and combination of parts, the essential elements of which are set forth in the appended claims, and a preferred form of embodiment of which is hereinafter shown with reference to the drawing which accompany and form a part of this speciiication.

In the drawing:

Fig. I is a front View of the assembled device. This view shows a iire door with a door being associated with the fire door in hinged relationship therewith.

Fig. II is a section on the line II-II of Fig. III.

Fig. III is a fragmentary partially sectional side view of the assembled device.

Fig. IV is a fragmentary sectional side View of a part of the inner shell forming the fire box and a part of the outer flanged shell and illustrating where the inner rim of the flanged portion of the outer shell is secured to the outer shell and illustrating the head and its attachment to.

Like reference characters refer to like parts throughout the several views.

I form my hot water heater of an inner shell I. The inner shell is made of sheet metal and is comprised of a plain tube. A head 2 forms the front end of the hot water heater and a fire door 3 is hingedly secured to the head 2 by conventional hinges 6 and l. A latch 4 is provided for maintaining the lire door 3 closed. An ash door is provided and the same is hingedly secured to the fire door in the conventional manner as illustrated at 8 and 9.

`wardly extends from the ash door.

.A supporting hook I I outwardly extends from the re door.

An adjustable chain I2 is provided for regulating the ash door into partially open position to control the air draft therethrough. The chain I2 is hooked over the upper end of the hook Il to maintain the ash door to the desired placed open position.

. A head I3 is disposed in the oppositely disposed end of the inner shell and a thimble I4 is provided thereinto to facilitate the attachment of a smoke pipe I5 thereto.

An outer shell I6 is provided. The outer shell I is placed at its opposite ends with the flange inwardly extending to maintain the inner shell I and the outer shell I5 in suitable spaced relation. The rim of the ange Il is welded or otherwise secured to the inner shell. The overall length of the outer shell is substantially less than the overall length of the inner shell to provide a support between the end I 8 of the outer shell and the end I9 of the inner shell to provide a suitable support for an insulated covering 2E! that may be placed about the outer longitudinal surface of the respective shells. In order to maintain the insulating coating 20 suitably positioned upon the respective shells I may upturn the inner shell at its adjacent ends as illustrated at 2l to provide a suitable lock for the insulating covering.

I provide a pair of legs 22 and 23. These legs are preferably made of bar metal. I form lugs 24 and 25 at the terminal ends to provide suitable surfaces for attaching the same to the outer shell of the hot water heater. The same may be secured thereto as by being welded thereto.

I provide attaching nipple 26 to the underside of the outer shell. A cold Water pipe 2l is attached thereto through the use of an elbow 28. At the opposite ends of the top side of the outer shell I also provide attaching nipple 29. I attach a discharge hot water pipe thereto by providing suitable attaching means as an elbow 3|.

While the form of mechanism herein shown and described is admirably adapted to fulll the objects primarily stated, it is to be lunderstood that it is not intended to confine the invention to the embodiment herein shown and described, as it is susceptible of embodiment in various forms, all coming Within the scope of the claims which follow.

What I claim is:

1. In a water heater, the combination of an inner shell and an outer shell that is concentric to the inner shell, the inner shell having a head disposed in its opposite ends with one of said heads having a re door hingedly secured to the head and having a combination ash and draft door hingedly secured to the fire door, said cuter shell being made of a single piece and being inwardly hanged at its opposite ends to place the sheets forming the inner and the outer shells spaced apart between the hanged ends of the outer shell and the inner shell being longer than the outer shell, with the ends of the inner shell being outwardly expanded to form a locking rim for an insulating cover, with the boiler assembly thus formed being covered with an insulating coverging, an inlet water connection being disposed at one end of the outer shell and being in communication with the space disposed between the inner and the outer shell and an outlet water connection disposed at the top side of the outer shell to permit a circulation of water through the boiler and a smoke pipe connection disposed in the head end of the boiler and in the head disposed at the opposite end of the boiler to the head having a re door disposed therein and a pair of legs each made of a single piece of bar metal spaced apart and disposed adjacent the ends of the outer shell.

2. A hot water heating boiler comprised oft concentric inner and outer shells, with the inner shell being longer than the outer shell and with\ the outer shell having inner extending anges at its ends to form a connection between the respective shells where the respective flanges engage the inner shell, an inlet and a discharge water connection disposed at the opposite sides and adjacent the ends 0f the outer shell, a head at each end of the boiler and secured to the inner shell, a fire door and an ash door associated with one of the heads and a smoke pipe outlet associated with the other one of the heads, and legs for the boiler and the legs being made from bar metal and an insulating covering for the longitudinal outer surface of the boiler.

EDWARD L. SWARTHOUT. 

